I have a pit bull and she's about 2 1/2 months. She has had her first set of shots it was just one parvo shot. She doesn't ever go outside l, we keep her in because she's small! But today she threw up about 6 times in 30 minutes this thick light brown stuff it could've almost been poop. Then she was fine and all playful and then several hours later she threw up twice within 30 minutes. Now she went poop and it's not solid, not watery just squishy and a little runny. I'm hoping it isn't parvo😞 my mom said it could be from her eating our cardboard boxes from our shoes but I don't know what to do... someone help please maybe just an upset stomach idk